Science during the Middle Ages was essentially a theoretical subject and a branch of philosophy, hence the usual term of natural philosophy. (religion.blogs.cnn.com)
These types of articles are fine, and even funny, but they are far «from necessary» — and any disagreement on a theoretical subject should be respected. (sbnation.com)
Even before my graduation, I always preferred the theoretical subjects to practical design projects. (sciencemag.org)